Having more than one natural language is bad for the world Updated +Created
Figure 1.
Tower of Babel by Pieter Bruegel the Elder (1563)
Source.
Even the Bible writers already know that multiple languages suck as seen from the Tower of Babel parable
Isn't it incredibly fitting that the building of the European Parliament looks like the Tower of Babel?
The fact that in poor countries a huge number of people do not speak the economically dominating language of the world, the lingua franca, English as of 2020, is a major obstacle to the development of those countries.
Despite us being in the information age, the people in those countries cannot fully benefit from it at all!
Teaching its people English should be the number one priority of any country. Without that, there can be no technological development. Everything else is secondary and can be learnt off the Internet once you know English.
And the most efficient way to do that, is that every country should create amazing free open source English learning material for their own language.
European countries are perhaps the most perfect example of how many languages destroy once powerful countries: Section "European Tower of Babel"
The Sapir–Whorf hypothesis is bullshit outside of poetry, and the ending of Arrival (2016) makes one want to puke, where learning a language changes not only your brain, but also Ciro's precious "laws" of Physics!
Much more likely are To Serve Man/A Small Talent for War events which we have already seen countless times!
Remember that those ideas come from a person who speaks 3.5 languages in 2019, and sees absolutely no practical difference between them.
Of course, like all non-constructed languages, English is not fully optimal in terms of regularity and information density. It could be argued that other languages are better in those aspects.
For example, Ciro does believe that spoken Chinese is a better language than English overall from a purely "ease of learning from scratch point of view" as mentioned at: github.com/cirosantilli/china-dictatorship/tree/6fdeb5aa3826c69f7c058de4e6f652a6924bc08a#does-ciro-santilli-speak-chinese. Chinese writing is completely insane of course, completely out of the question.
However, Ciro just doesn't think that the difference is that great to justify replacing English which is already dominant. How much more efficient can a perfect constructed language be than English? 1.01? 1.001? Such margins don't matter. Once you have learnt it young, it's done, for good.
English-based a posteriori constructed languages that regularize English further are perhaps the only reasonable alternative, like how C++ evolved from C by creating a low cost upgrade path. Although in practice they will never take off unless a dictatorship rules the world:
One interesting anecdote is that Ciro met his wife in French, and talking to her primarily in English feels really weird, so language does matter in love.
Different languages might also good at producing interesting diverse touristic locations, with different diverse and interesting foods. Because that's what tourism is all about. The exotic. The unique. And therefore, also necessarily the inefficient.
People with similar ideas:
Video 1.
English spelling - a bit mad, but perhaps the best system around by Lindybeige (2015)
Source. To be taken as a semi-joke, but he does mention the interesting point that English insane spelling helps disambiguate reading, like an intermediate between Chinese characters and more regular spelled languages.
xkcd 927: Standards Updated +Created